U.S. Cities Ranked by Air Pollution

Statistic Verification

Source: World Health Organization

Research Date: 10.15.2012

PM10 represents particles in the air that we consider pollution. These particles might be smoke, dirt, mold, pollen etc. PM10 are the larger course particles that are kicked up into the air and spread around causing severe health effects. PM2.5 represents fine particles such as toxic compounds and heavy metals caused by fires and metal smelting. Below is a list of where each country ranks by PM10 measured in the air.

US Cities Ranked by Air Pollution

Rank

Metropolitan Statistical Area

Average Annual Mean PM-10 Concentration (ug/m³)

1

Visalia, CA

60.4

2

Bakersfield, CA

54.8

3

Fresno, CA

51.7

4

Riverside, CA

48.1

5

Stockton, CA

44.8

6

Los Angeles, CA

43.8

7

Phoenix, AZ

39.5

8

Spokane, WA

38.7

9

Reno, NV

38.5

10

Las Vegas, NV

38.3

11

Anaheim, CA

38.1

12

Medford, OR

37.9

13

St. Joseph, MO

37.6

14

Yuba City, CA

37.4

15

Steubenville, OH

36.6

16

Provo, UT

36.5

17

Cleveland, OH

35.6

18

Omaha, NE

35.5

19

Atlanta, GA

35.1

20

Chattanooga, TN

34.9

21

Paterson, NJ

34.8

22

San Diego, CA

34.8

23

Boise City, ID

34.0

24

Chicago, IL

33.7

25

Roanoke, VA

33.7

26

Philadelphia, PA

33.5

27

Detroit, MI

33.2

28

Salt Lake City, UT

33.2

29

Yakima, WA

33.1

30

Chico, CA

33.1

31

Decatur, IL

33.0

32

Waterloo, IA

33.0

33

San Jose, CA

32.8

34

Knoxville, TN

32.6

35

Nashville, TN

32.4

36

Atlantic City, NJ

32.4

37

Laredo, TX

32.4

38

Houston, TX

31.9

39

Sacramento, CA

31.9

40

St. Louis, MO

31.8

41

Las Cruces, NM

31.7

42

Gadsden, AL

31.7

43

Mobile, AL

31.4

44

Newark, NJ

31.4

45

Providence, RI

31.4

46

Huntington, WV

31.4

47

Hamilton, OH

31.3

48

Pittsburgh, PA

31.0

49

Lancaster, PA

31.0

50

Indianapolis, IN

31.0

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